Five firefighters were trapped when a wall inside the home collapsed. (WSMV)

The fire started around 4 p.m. Monday. (Source: WLX Radio)

LAWRENCEBURG, TN (WSMV) -

A community is grieving after Lawrenceburg fire engineer Jason Dickey was killed in the line of duty while battling a house fire on Monday night.

Four other firefighters were injured in the massive blaze on Hood Lakes Road, which is about an hour and a half south of Nashville.

The fire sparked around 4 p.m. Monday. A distress call went out around 8 p.m. when a wall of the home collapsed and trapped the five firefighters underneath it. The firefighters were inside the home trying to put out hot spots.

Dickey, 38, was an 11-year veteran of the fire department. He leaves behind his wife, their three children and their unborn baby, who is due in just a few weeks.

"We lost a hero, we lost a man who saved several lives in his 11-year career," said Lawrenceburg Fire Chief Jay Moore.

One firefighter remains in the hospital after being released from the intensive care unit. Officials say he could be released on Wednesday. Another firefighter was released from the hospital Tuesday. Two firefighters were treated and released on Monday night.

Officials are still investigating the cause of the fire, which they say appears to have been a freak accident. A mother and father and their adult son were inside the house when the fire started.

Many people in this tight-knit community are heartbroken, including the fire chief, who referred to Dickey as one of his own boys.

"I've known this man since he was a little bitty kid. I've known his dad all my life. I was his battalion chief when they were engaged and they got married. This is hard on the community, it's hard on our fire department, it's hard on our family," Moore said.

Funeral arrangements have been announced for Dickey. His family will receive friends at Mars Hill Baptist Church from 2 to 8 p.m. on Thursday. His funeral and burial will be held on Friday. His family is asking for all memorials to be donated to St. Jude Children's Hospital. Condolences can also be sent to Dickey's family online at www.nealfuneralhome.net.

"We lost a hero, we lost a best friend. We lost a guy that loved his family, including the fire service family," Moore said.

Nashville Fire Department Director Chief William Swann released this statement:

I called Lawrenceburg Fire Chief Jay Moore this morning to offer my condolences and support at this tragic time. It is a sad day for everyone in the firefighting community because of the loss of Firefighter Jason Dickey in Lawrenceburg. No matter where we serve, firefighters are a family bonded by the sacrifices we make to protect our community. When we lose one of our own we mourn along with their department. In the coming days, months and years we will remember Firefighter Jason Dickey as a true hero. We pray for peace, comfort and healing for everyone he touched.

The Nashville Fire Department’s Critical Incident Stress Management (CISM) team sent representatives to Lawrenceburg on Monday night to offer assistance to the personnel impacted by this tragedy. CISM offers confidential peer counseling following traumatic events such as the loss of Firefighter Jason Dickey.